1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-, polymer with 2-aminoethanol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol and 2,5-furandione 1,3-Propanediol, 2,2-dimethyl-, polymer with 2-aminoethanol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,5-furandione and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione 2,5-Furandione, polymer with 2-aminoethanol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 2-aminoethanol, 2,2-dimethyl-1,3-propanediol, 2,5-furandione and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione Ethanol, 2-amino-, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol, 2,5-furandione and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione Ethanolamine-maleic anhydride-neopentyl glycol-tetrahydrophthalic anhydride-trimellitic acid anhydride copolymer